Warp crimp fabric

Abstract

A method for weaving extremely low warp crimp fabrics is introduced. The weft yarns are allowed to take up the crimp in the fabric by weaving with pre-crimped weft yarn.

1 . A woven fabric with extremely low warp crimp produced by using pre-crimped yarn in the weft of the fabric.  
   
   
       2 . A method of weaving fabric pre-crimping the weft yarns allowing the weft yarns to take up the normal crimp induced by the interlacing of the warp and weft yarns, leaving the warp yarns relatively straight and the weft yarns highly crimped.  
   
   
       3 . A method of making fabric web of width w and length at least n times the width w (n×w) said method comprising: 
 a) pre-crimping a supply of weft thread to increase the overall length by a percent in the range of 10 to 20 percent,    b) weaving lengths of pre-crimped weft threads into the array of warp threads, whereby the usual crimping in the weft direction can be more readily accommodated in the resulting fabric.    
   
   
       4 . A method of making fabric with a higher beat up (weft yarns per inch) as a result of using pre-crimped weft threads to reduce the tensions and abrasion which normally occurs during the interlacing of the threads during weaving.  
   
   
       5 . A method of making closely woven fabric on a loom and comprising; 
 pre-crimping yarns to create a non-linear set to these yarns, at least when these pre-crimped yarns are not under tension,    weaving these pre-crimped yarns into a fabric on the loom, with warp yarns of length and tension significantly greater than that of the weft yarns,    using the pre-crimped yarns for at least some weft yarns in the loom weaving process, whereby the tendency for unequal crimping in the warp and weft directions during the loom weaving process can be alleviated.    
   
   
       6 . A fabric woven from pre-crimped weft yarn according to the method of  claim 5.